Episode 140: Crit Research Lab Update & Client-Side Tricks Galore
Critical Thinking - Bug Bounty Podcast18 Syys 2025

Episode 140: Crit Research Lab Update & Client-Side Tricks Galore

Episode 140: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph give an update from The Crit Research Lab, as well as some writeups on postMessage vulnerabilities, Cookie Chaos, and more.

Follow us on X at: https://x.com/ctbbpodcast

Got any ideas and suggestions? Send us feedback at info@criticalthinkingpodcast.io

Shoutout to YTCracker for the awesome intro music!

====== Links ======

Follow your hosts Rhynorater and Rez0

====== Ways to Support CTBBPodcast ======

Hop on the CTBB Discord!

Get some hacker swag here!

====== This Week in Bug Bounty ======

Cross-site request forgery

HackerOne New Milestone Program

Email santerra.holler@bugcrowd.com for media opportunities

====== Resources ======

Exploiting Web Worker XSS with Blobs

Critical Research Lab

Rez0's Tweet

CVE-2022-21703: cross-origin request forgery against Grafana

Conversation about Forcing Quirks Mode

AI Busniess Logic & POC or GTFO

Hunting postMessage Vulnerabilities – Part 1

Hunting postMessage Vulnerabilities – Part 2

Executive Offense

Cookie Chaos: How to bypass Host and Secure cookie prefixes

====== Timestamps ======

(00:00:00) Introduction

(00:05:48) Crit Research Update

(00:13:00) Encouragement & Collaboration

(00:19:37) Cross-origin request forgery & Anthropic's web fetch

(00:29:17) Quirks Mode, AI Business Logic & POC or GTFO

(00:44:21) Hunting postMessage & Claude Code browserbase

(00:51:25) Community story, Executive Offense, & Cookie Chaos

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